Question

Choose the correct statements for the given reaction setup.
I. Using this setup a soluble gas can be prepared by water displacement.
II. Decomposition reaction happens in this setup, if the heated substance is potassium chlorate.
III. Using this setup a insoluble gas can be prepared by water displacement.

• A. II and III
• B. II
• C. I and III
• D. I, II, and III
• E. I
  

Answer 1

Answer: (A)

II and III

The statements II and III are the correct statements for the given reaction setup.
$II$. Decomposition reaction happens in this setup, if the heated substance is potassium chlorate.
$KCl{O}_3\to KCl+3/2O_2$
$III$. Using this setup a insoluble gas can be prepared by water displacement.
An example includes Dumas method for the quantitative analysis of nitrogen in organic compound.